CN109603596A - A metal organic framework material photothermal seawater desalination membrane - Google Patents
A metal organic framework material photothermal seawater desalination membrane Download PDFInfo
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- CN109603596A CN109603596A CN201910055691.8A CN201910055691A CN109603596A CN 109603596 A CN109603596 A CN 109603596A CN 201910055691 A CN201910055691 A CN 201910055691A CN 109603596 A CN109603596 A CN 109603596A
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- walled carbon
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- 239000012528 membrane Substances 0.000 title claims abstract description 53
- 239000000463 material Substances 0.000 title claims abstract description 46
- 239000012621 metal-organic framework Substances 0.000 title claims abstract description 40
- 239000013535 sea water Substances 0.000 title claims abstract description 38
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 30
- 239000010408 film Substances 0.000 claims abstract description 116
- 239000002109 single walled nanotube Substances 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims abstract description 44
- 239000010409 thin film Substances 0.000 claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 239000000243 solution Substances 0.000 claims description 60
- 239000002070 nanowire Substances 0.000 claims description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 40
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 claims description 28
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 14
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000013110 organic ligand Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000003828 vacuum filtration Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002071 nanotube Substances 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 239000013384 organic framework Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 229940006186 sodium polystyrene sulfonate Drugs 0.000 claims 8
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 claims 3
- 239000005750 Copper hydroxide Substances 0.000 claims 3
- 229910001956 copper hydroxide Inorganic materials 0.000 claims 3
- 238000003756 stirring Methods 0.000 claims 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 229940059939 kayexalate Drugs 0.000 abstract description 36
- 230000004048 modification Effects 0.000 abstract description 25
- 238000012986 modification Methods 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- AEJIMXVJZFYIHN-UHFFFAOYSA-N copper;dihydrate Chemical group O.O.[Cu] AEJIMXVJZFYIHN-UHFFFAOYSA-N 0.000 description 32
- 239000013148 Cu-BTC MOF Substances 0.000 description 31
- 238000001704 evaporation Methods 0.000 description 28
- 230000008020 evaporation Effects 0.000 description 27
- 239000004417 polycarbonate Substances 0.000 description 19
- 229920000515 polycarbonate Polymers 0.000 description 19
- 238000010792 warming Methods 0.000 description 14
- 235000019441 ethanol Nutrition 0.000 description 13
- 238000002407 reforming Methods 0.000 description 10
- 229940031098 ethanolamine Drugs 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 8
- 238000003760 magnetic stirring Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000008399 tap water Substances 0.000 description 7
- 235000020679 tap water Nutrition 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000012046 mixed solvent Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003763 carbonization Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000005554 pickling Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 229910052724 xenon Inorganic materials 0.000 description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 230000031700 light absorption Effects 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 108091006146 Channels Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000013147 Cu3(BTC)2 Substances 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000034655 secondary growth Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/021—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/447—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by membrane distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/22—Thermal or heat-resistance properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to desalination with Solar Energy fields, disclose a kind of metal-organic framework material photo-thermal sea water desalination membrane, including buoyancy layer, and are sequentially coated on the resistance salt deposit and optothermal material layer on one surface of buoyancy layer；The buoyancy layer provides buoyancy with the hole passed through of supplying water, for resistance salt deposit and optothermal material layer；The resistance salt deposit is single-walled carbon nanotube/metal organic framework thin film of kayexalate modification；The optothermal material layer is hierarchical porous structure C film.The invention also discloses single-walled carbon nanotube/metal organic framework thin film of kayexalate modification and hierarchical porous structure C films and preparation method thereof.Photo-thermal sea water desalination membrane of the invention has the characteristics that production cost is low, is produced on a large scale, durability and stability are good, has broad application prospects.
Description
Technical field
The present invention relates to desalination with Solar Energy field more particularly to a kind of metal-organic framework material photo-thermal seawater
Desalinate film.
Background technique
One of the problem of freshwater resources rare is global most serious, in the various strategies for alleviating shortage of fresh water, the sun
Energy sea water desalination does not consume traditional energy, is the technology of sustainable and ecological close friend a kind of.In recent years, interface solar energy steam
Conversion is considered as a kind of very promising high-efficiency energy conversion technique, is swum on water-air interface by reasonable design
Optothermal material, accelerate the evaporation rate of water to realize the conversion of efficient interface solar energy steam.
It realizes efficient interface light-steam conversion, there is following requirement to optothermal material: 1) efficient and broadband sunlight
It absorbs；2) there is extremely low heat loss and efficient photothermal conversion efficiency；3) water supply hydrophilic and that there is abundance；And 4) have
Promising vapor provides the porous structure in convenient in rapid escape channel.
In addition to this, in practical desalting process, the deposition of salt can block duct, lead to the hardened failure of film, sternly
Ghost image rings the service life of optothermal material.Therefore, the design solar energy good with high-efficiency evaporating rate and durability and stability
Light steam transition material is particularly important.
Metal-organic frame is to construct the one kind formed by metal ion or cluster and organic ligand to have special topology
The inorganic-organic hybridization nanoporous crystalline material of structure.Metal-organic frame not only has high porosity, big ratio table
Area and rule hole configurations, and it structure and composition multiplicity and can be adjusted.It is worth noting that, having parent
The Metal-organic frame of aquaporin has the potentiality as excellent water supply component.Meanwhile by simply modifying, metal has
The duct of machine frame object can guarantee water quickly through while, slow down even prevent seawater in metal ion transmission.This
Outside, as a kind of presoma, Metal-organic frame carries out pyrolysis under an inert atmosphere can be converted into porous carbon materials.
Currently, the preparation overwhelming majority of metal organic framework thin film is used under higher temperature, in inorganic planar substrate
On be prepared by the secondary growth method containing organic solvent, can cause environmental pollution.
Summary of the invention
Present invention firstly provides a kind of metal-organic framework material photo-thermal sea water desalination membrane, which has height
Light absorption, the characteristic of light conversion, water transmission and water evaporation of effect.
Specific technical solution is as follows:
A kind of metal-organic framework material photo-thermal sea water desalination membrane, including buoyancy layer, and it is sequentially coated on the buoyancy
The resistance salt deposit and optothermal material layer on one surface of layer；
The buoyancy layer provides buoyancy with the hole passed through of supplying water, for resistance salt deposit and optothermal material layer；
The resistance salt deposit is single-walled carbon nanotube/metal organic framework thin film of kayexalate modification；
The optothermal material layer is hierarchical porous structure C film.
The preparation method of the hierarchical porous structure C film the following steps are included:
(i) hydroxide nano line solution is mixed with single-walled carbon nanotube aqueous dispersions, is filtered by vacuum after mixing evenly
Onto perforated substrate film, hydroxide nano line/single-walled carbon nanotube composite membrane is obtained after removing perforated substrate film；
(ii) hydroxide nano line/single-walled carbon nanotube composite membrane is placed in organic ligand solution, is obtained after reaction
Single-walled carbon nanotube/metal organic framework thin film；
(iii) single-walled carbon nanotube/metal organic framework thin film is placed under nitrogen atmosphere and is calcined, cooling is laggard
Row pickling, washing, drying obtain hierarchical porous structure C film flexible.
The hierarchical porous structure C film has apparent layered structure, and is loosely packed together between layers, this
Film will be significantly reduced in the thermal conductivity of vertical direction, however in each layer, single-walled carbon nanotube runs through, it is more to wind porous carbon
Face body, so that film shows higher thermal conductivity in the horizontal direction.
Preferably, the hydroxide nano line is Kocide SD nano wire；The organic ligand is equal benzene front three
Acid.After reacted, the Metal-organic frame that Kocide SD nano wire is reacted with trimesic acid is HKUST-1, point
Minor is Cu3(BTC)2·3H2O.Metal-organic frame carries out pyrolysis under an inert atmosphere can be converted into porous carbon materials.
The Kocide SD nano wire the preparation method comprises the following steps: the aqueous solution of ethanolamine solutions and copper nitrate is mixed in equal volume
It closes, sealing and standing obtains Kocide SD nanowire solution after mixing evenly；
In ethanolamine solutions, the concentration of ethanol amine is 1~2mmol/L；In copper nitrate aqueous solution, the concentration of copper nitrate is 3
~5mmol/L.
In the ethanolamine solutions, solvent is the mixed liquor of the ethyl alcohol that volume ratio is 1: 1 and water.
After 2~5min is mixed in ethanolamine solutions and copper nitrate aqueous solution, standing 12~for 24 hours, obtain Kocide SD
Nanowire solution.
The Kocide SD nanowire solution can also be prepared using other prior arts.
In the trimesic acid solution, solvent is the mixed liquor of the ethyl alcohol that volume ratio is 1: 1 and water, trimesic acid
Concentration be 8~15mmol/L.
The perforated substrate film is polycarbonate perforated membrane, and aperture is 0.2~5 micron.
When single-walled carbon nanotube content is more, film surface is smooth and has lesser specific surface area, this will increase film
Reflection to light reduces film to the utilization rate of light, while closely stacking the ratio for reducing film between single-walled carbon nanotube
Surface area reduces the evaporation site of water, is unfavorable for the rapid evaporation of water；It is thin however when single-walled carbon nanotube content is less
The mechanical performance of film is poor, and it reduce the durability of film in practical applications.
Preferably, in single-walled carbon nanotube/metal organic framework thin film that step (ii) obtains, Metal-organic frame
Mass ratio with single-walled carbon nanotube is 10~100: 1.
It is further preferred that in single-walled carbon nanotube/metal organic framework thin film, Metal-organic frame and single wall carbon
The mass ratio of nanotube is 20~50: 1.
Different calcine technologies has important influence to the performance of material, when calcination temperature is higher, heating rate is very fast,
When soaking time is longer, film decomposes more complete, carbonizing degree height, the hydrophily of film less containing hydrophilic functional group
It is poor；However when calcination temperature is lower, heating rate is relatively slow, soaking time is shorter, not exclusively, this will affect thin for film carbonization
The stability and absorbing properties of film.
Preferably, in step (iii), calcine technology are as follows: be first warming up to 100~150 DEG C with 1~5 DEG C/min, heat preservation 100
~150min, then 400~900 DEG C are warming up to 1~5 DEG C/min, keep the temperature 60~120min.
It is further preferred that in step (iii), calcine technology are as follows: be first warming up to 100~150 DEG C with 1~5 DEG C/min, protect
100~150min of temperature, then 400~900 DEG C are warming up to 1~3 DEG C/min, keep the temperature 80~100min.
Most preferably, in step (iii), calcine technology are as follows: be first warming up to 100~150 DEG C with 1~5 DEG C/min, heat preservation
100~150min, then 400~900 DEG C are warming up to 2 DEG C/min, keep the temperature 90min.
Single-walled carbon nanotube/metal organic framework thin film preparation method packet of the kayexalate modification
Include following steps:
(I) hydroxide nano line solution, kayexalate solution and single-walled carbon nanotube aqueous dispersions are mixed
It closes, is filtered by vacuum on perforated substrate film after mixing evenly, obtain hydroxide nano line/polyphenyl second after removing perforated substrate film
Alkene sodium sulfonate/single-walled carbon nanotube composite membrane；
(II) hydroxide nano line/kayexalate/single-walled carbon nanotube composite membrane is placed in organic ligand is molten
Single-walled carbon nanotube/metal organic framework thin film of kayexalate modification is obtained in liquid, after reaction.
Single-walled carbon nanotube/metal organic framework thin film porosity with higher of kayexalate modification
With hydrophilic duct abundant, while it can also selectively stop the diffusion of salt ion.
Preferably, the hydroxide nano line is Kocide SD nano wire；The organic ligand is equal benzene front three
Acid.
The parameter of Kocide SD nanowire solution, trimesic acid solution and perforated substrate film is same as above.
Preferably, the concentration of the kayexalate solution is 0.01~0.05wt%.
When single-walled carbon nanotube content is more, Metal-organic frame content is less in film, be unfavorable for water transmission and
The blocking of salt；However when single-walled carbon nanotube content is less, the mechanical performance of film is poor, and which prevent films in practical life
Application in work.Meanwhile when kayexalate content is lower, the performance of film barrier salt ion is poor, when polyphenyl second
When alkene sulfonic acid sodium content is higher, transformation of the nano wire to Metal-organic frame also will affect.
Preferably, in single-walled carbon nanotube/metal organic framework thin film of kayexalate modification, gold
The mass ratio for belonging to organic framework and single-walled carbon nanotube is 5~100: 1；Metal-organic frame and kayexalate
Mass ratio is 5~30: 1.
It is further preferred that the mass ratio of Metal-organic frame and single-walled carbon nanotube is 10~50: 1；Metal is organic
The mass ratio of frame object and kayexalate is 10~15: 1.
When in use, photo-thermal sea water desalination membrane buoyancy layer is swum in into seawater surface downward.Seawater passes through buoyancy layer
On hole be introduced into the resistance salt deposit single-walled carbon nanotube/metal organic framework thin film of modification (kayexalate), the resistance
Salt deposit porosity with higher and hydrophilic duct abundant, ensure that the ample supply of water, simultaneously during evaporation of seawater
The diffusion for selectively stopping salt ion in seawater, effectively slows down solar seawater desalination film in actual use
The problem of mineralization；Seawater enters optothermal material layer (hierarchical porous structure C film) through resistance salt deposit later, optothermal material layer tool
Have a characteristic of efficient light absorption, light conversion, water transmission and water evaporation, which has an apparent layered structure, and layer and layer it
Between be loosely packed together, this will significantly reduce film in the thermal conductivity of vertical direction, however in each layer, single wall carbon is received
Mitron runs through, winds porous carbon polyhedron, so that optothermal material layer shows higher thermal conductivity in the horizontal direction, it is this special
Structure result in the anisotropy of optothermal material layer thermal conductivity, be conducive to heat and concentrate at optothermal material layer-Air Interface,
And the heat after converting drives the rapid evaporation of water in optothermal material layer in situ, the water that steam condensation is desalinated.
Preferably, the material of the buoyancy layer is polyethylene.Not only density is small for polyethylene, and have every
Heat function further obstructs upper layer solar heat and conducts into the water body below buoyancy layer.
Compared with prior art, the invention has the benefit that
(1) in the present invention, hierarchical porous structure C film has evaporation site abundant and efficient light absorption, while film
It with apparent layered structure, and is loosely packed together between layers, this will significantly reduce film in vertical direction
Thermal conductivity, however in each layer, single-walled carbon nanotube runs through, winds porous carbon polyhedron, so that film table in the horizontal direction
Reveal higher thermal conductivity, overall performance goes out the anisotropy of thermal conductivity；
(2) present invention in, kayexalate modification single-walled carbon nanotube/metal organic framework thin film have compared with
High porosity and hydrophilic duct abundant, while can also selectively stop the diffusion of salt ion；
(3) light absorption, heat pipe needed for photo-thermal sea water desalination membrane of the invention meets the conversion of solar energy optical-thermal water evaporation
Reason, water transmission and water evaporation requirement, water evaporation is high-efficient, and the solar seawater desalination film have production cost it is low, can
The features such as large-scale production, durability and stability are good, has broad application prospects.
Detailed description of the invention
Fig. 1 is single-walled carbon nanotube/HKUST-1 film surface of kayexalate modification prepared by embodiment 1
SEM photograph；
Fig. 2 is the surface SEM photograph of hierarchical porous structure C film -4 prepared by embodiment 7；
Fig. 3 is the section SEM photograph of hierarchical porous structure C film -4 prepared by embodiment 7；
Fig. 4 is the partial enlargement SEM photograph of hierarchical porous structure C film -4 prepared by embodiment 7；
Fig. 5 is the structural schematic diagram of metal-organic framework material photo-thermal sea water desalination membrane；
Fig. 6 is water body weightlessness change curve of the different hierarchical porous structure C films under a sun；
Fig. 7 is evaporation rate and solar energy vapor reforming efficiency of the different hierarchical porous structure C films under a sun
Figure；
Fig. 8 is long circulating performance of the metal-organic framework material photo-thermal sea water desalination membrane in simulated seawater evaporation.
Specific embodiment
In following embodiment Kocide SD nanowire solution the preparation method comprises the following steps:
(1) ethanol amine is added in the mixed liquor (volume ratio of water and ethyl alcohol is 1: 1) of second alcohol and water, obtains ethanol amine
Solution, wherein the concentration of ethanol amine is 1.4mM (mmol/L)；
(2) copper nitrate is added in aqueous solution, obtains copper nitrate solution, wherein the concentration of copper nitrate is 4mM (mmol/L)；
(3) ethanolamine solutions are mixed in equal volume with copper nitrate solution again, sealing and standing 12 is small after magnetic agitation 2 minutes
When, obtain Kocide SD nanowire solution.
The concentration of single-walled carbon nanotube aqueous solution employed in following embodiment is 0.75mg/ml；Polystyrolsulfon acid
The concentration of sodium solution is 0.03wt%；The concentration of trimesic acid solution is 10mM, and wherein solvent is the ethyl alcohol that volume ratio is 1: 1
With water mixed liquid.
Kocide SD nanowire solution used in following embodiment and other solution are all made of above method preparation, but need
, it is noted that this is preferred embodiment of the invention, and each parameter can be adjusted according to actual needs, can also be using existing
There is the other methods preparation in technology.
Embodiment 1
1) the single-walled carbon nanotube aqueous solution for being 0.75mg/L by 400ml Kocide SD nanowire solution and 1.07ml concentration
With the kayexalate solution mixing that 0.76ml concentration is 0.03wt%, after magnetic stirring for 10 minutes, vacuum filtration is poly-
On carbonic ester perforated membrane, using ethanol solution by after the porous film stripping of polycarbonate, the kayexalate of self-supporting is obtained
Kocide SD nano wire/single-walled carbon nanotube composite membrane of modification, wherein the diameter of polycarbonate perforated membrane is 4.7 centimetres,
Aperture is 1 micron.
2) to be put into 20ml dense for the Kocide SD nano wire/single-walled carbon nanotube composite membrane for modifying kayexalate
Degree be (solvent is that the volume of ethyl alcohol and water is 1: 1), room temperature reaction 12 hours in 10mM trimesic acid solution.
It is washed 3 times after reaction with the mixed solvent of same ratio, obtains the single of kayexalate modification
Pipe/HKUST-1 film, wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 40: 1, HKUST-1 and polystyrolsulfon acid
The mass ratio of sodium is 14: 1.
As shown in Figure 1, single-walled carbon nanotube/HKUST-1 film surface topography of kayexalate modification, crystal grain
Intergrowth is good, the continuous free from flaw of film.The film has lower ion diffusion rates, and wherein the diffusion rate of sodium ion is
0.189mol·m-2·h-1, the diffusion rate of chloride ion is 0.091mo1m-2·h-1。
Embodiment 2
1) the single-walled carbon nanotube aqueous solution for being 0.75mg/L by 400ml Kocide SD nanowire solution and 1.42ml concentration
With the kayexalate solution mixing that 0.76ml concentration is 0.03wt%, after magnetic stirring for 10 minutes, vacuum filtration is poly-
On carbonic ester perforated membrane, using ethanol solution by after the porous film stripping of polycarbonate, the kayexalate of self-supporting is obtained
Kocide SD nano wire/single-walled carbon nanotube composite membrane of modification, wherein the diameter of polycarbonate perforated membrane is 4.7 centimetres,
Aperture is 1 micron.
2) to be put into 20ml dense for the Kocide SD nano wire/single-walled carbon nanotube composite membrane for modifying kayexalate
Degree be (solvent is that the volume of ethyl alcohol and water is 1: 1), room temperature reaction 12 hours in 10mM trimesic acid solution.
It is washed 3 times after reaction with the mixed solvent of same ratio, obtains the single of kayexalate modification
Pipe/HKUST-1 film, wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 30: 1, HKUST-1 and polystyrolsulfon acid
The mass ratio of sodium is 14: 1.
Single-walled carbon nanotube/HKUST-1 film surface topography of obtained kayexalate modification, crystal grain intergrowth
Well, the continuous free from flaw of film has lower salt ion diffusion rate.
Embodiment 3
1) the single-walled carbon nanotube aqueous solution for being 0.75mg/L by 400ml Kocide SD nanowire solution and 2.13ml concentration
With the kayexalate solution mixing that 0.76ml concentration is 0.03wt%, after magnetic stirring for 10 minutes, vacuum filtration is poly-
On carbonic ester perforated membrane, using ethanol solution by after the porous film stripping of polycarbonate, the kayexalate of self-supporting is obtained
Kocide SD nano wire/single-walled carbon nanotube composite membrane of modification, wherein the diameter of polycarbonate perforated membrane is 4.7 centimetres,
Aperture is 1 micron.
2) to be put into 20ml dense for the Kocide SD nano wire/single-walled carbon nanotube composite membrane for modifying kayexalate
Degree be (solvent is that the volume of ethyl alcohol and water is 1: 1), room temperature reaction 12 hours in 10mM trimesic acid solution.
It is washed 3 times after reaction with the mixed solvent of same ratio, obtains the single of kayexalate modification
Pipe/HKUST-1 film, wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 20: 1, HKUST-1 and polystyrolsulfon acid
The mass ratio of sodium is 14: 1.
Single-walled carbon nanotube/HKUST-1 film surface topography of obtained kayexalate modification, crystal grain intergrowth
Well, the continuous free from flaw of film has lower salt ion diffusion rate.
Embodiment 4
It 1) is that 0.75mg/L single-walled carbon nanotube aqueous solution mixes with 3.7ml concentration by 700ml Kocide SD nanowire solution
It closes, after magnetic stirring for 10 minutes, is filtered by vacuum on polycarbonate perforated membrane, is shelled polycarbonate perforated membrane using ethanol solution
From rear, Kocide SD nano wire/single-walled carbon nanotube composite membrane of self-supporting is obtained, wherein the diameter of polycarbonate perforated membrane
It is 4.7 centimetres, aperture is 1 micron.
2) Kocide SD nano wire/single-walled carbon nanotube composite membrane is put into 20ml concentration is that 10mM trimesic acid is molten
In liquid (solvent is the ethyl alcohol of volume 1: 1 and the mixed liquor of water), react at room temperature 12 hours.Mixing after reaction with same ratio is molten
Agent is washed 3 times, and single-walled carbon nanotube/HKUST-1 film is obtained, and wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 20:
1。
3) single-walled carbon nanotube prepared /HKUST-1 film is put into silica crucible, is placed in vacuum tube furnace,
It is calcined under the atmosphere of nitrogen, is first warming up to 120 DEG C with 5 DEG C/min, keep the temperature 120 minutes, then be warming up to 2 DEG C/min
450 DEG C, 90 minutes are kept the temperature, after cooling, the film that direct carbonization is obtained is placed in pickling 24 hours in the dilute nitric acid solution of 1M, most
Hierarchical porous structure C film flexible is obtained, hierarchical porous structure C film -1 is denoted as to neutrality with deionized water washing afterwards.
Embodiment 5
It 1) is that 0.75mg/L single-walled carbon nanotube aqueous solution mixes with 3.7ml concentration by 700ml Kocide SD nanowire solution
It closes, after magnetic stirring for 10 minutes, is filtered by vacuum on polycarbonate perforated membrane, is shelled polycarbonate perforated membrane using ethanol solution
From rear, Kocide SD nano wire/single-walled carbon nanotube composite membrane of self-supporting is obtained, wherein the diameter of polycarbonate perforated membrane
It is 4.7 centimetres, aperture is 1 micron.
2) Kocide SD nano wire/single-walled carbon nanotube composite membrane is put into 20ml concentration is that 10mM trimesic acid is molten
In liquid (volume of ethyl alcohol and water is 1: 1), react at room temperature 12 hours.It is washed 3 times, is obtained with the mixed solvent of same ratio after reaction
To single-walled carbon nanotube/HKUST-1 film, wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 20:1.
3) single-walled carbon nanotube prepared /HKUST-1 film is put into silica crucible, is placed in vacuum tube furnace,
It is calcined under the atmosphere of nitrogen, is first warming up to 120 DEG C with 5 DEG C/min, keep the temperature 120 minutes, then be warming up to 2 DEG C/min
600 DEG C, 90 minutes are kept the temperature, after cooling, the film that direct carbonization is obtained is placed in pickling 24 hours in the dilute nitric acid solution of 1M, most
Hierarchical porous structure C film flexible is obtained, hierarchical porous structure C film -2 is denoted as to neutrality with deionized water washing afterwards.
Embodiment 6
It 1) is that 0.75mg/L single-walled carbon nanotube aqueous solution mixes with 3.7ml concentration by 700ml Kocide SD nanowire solution
It closes, after magnetic stirring for 10 minutes, is filtered by vacuum on polycarbonate perforated membrane, is shelled polycarbonate perforated membrane using ethanol solution
From rear, Kocide SD nano wire/single-walled carbon nanotube composite membrane of self-supporting is obtained, wherein the diameter of polycarbonate perforated membrane
It is 4.7 centimetres, aperture is 1 micron.
2) Kocide SD nano wire/single-walled carbon nanotube composite membrane is put into 20ml concentration is that 10mM trimesic acid is molten
In liquid (volume of ethyl alcohol and water is 1: 1), react at room temperature 12 hours.It is washed 3 times, is obtained with the mixed solvent of same ratio after reaction
To single-walled carbon nanotube/HKUST-1 film, wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 20: 1.
3) single-walled carbon nanotube prepared /HKUST-1 film is put into silica crucible, is placed in vacuum tube furnace,
It is calcined under the atmosphere of nitrogen, is first warming up to 120 DEG C with 5 DEG C/min, keep the temperature 120 minutes, then be warming up to 2 DEG C/min
800 DEG C, 90 minutes are kept the temperature, after cooling, the film that direct carbonization is obtained is placed in pickling 24 hours in the dilute nitric acid solution of 1M, most
Hierarchical porous structure C film flexible is obtained, hierarchical porous structure C film -3 is denoted as to neutrality with deionized water washing afterwards.
Embodiment 7
It 1) is that 0.75mg/L single-walled carbon nanotube aqueous solution mixes with 1.5ml concentration by 700ml Kocide SD nanowire solution
It closes, after magnetic stirring for 10 minutes, is filtered by vacuum on polycarbonate perforated membrane, is shelled polycarbonate perforated membrane using ethanol solution
From rear, Kocide SD nano wire/single-walled carbon nanotube composite membrane of self-supporting is obtained, wherein the diameter of polycarbonate perforated membrane
It is 4.7 centimetres, aperture is 1 micron.
2) Kocide SD nano wire/single-walled carbon nanotube composite membrane is put into 20ml concentration is that 10mM trimesic acid is molten
In liquid (volume of ethyl alcohol and water is 1: 1), react at room temperature 12 hours.It is washed 3 times, is obtained with the mixed solvent of same ratio after reaction
To single-walled carbon nanotube/HKUST-1 film, wherein the mass ratio of HKUST-1 and single-walled carbon nanotube is 50: 1.
3) single-walled carbon nanotube prepared /HKUST-1 film is put into silica crucible, is placed in vacuum tube furnace,
It is calcined under the atmosphere of nitrogen, is first warming up to 120 DEG C with 5 DEG C/min, keep the temperature 120 minutes, then be warming up to 2 DEG C/min
800 DEG C, 90 minutes are kept the temperature, after cooling, the film that direct carbonization is obtained is placed in pickling 24 hours in the dilute nitric acid solution of 1M, most
Hierarchical porous structure C film flexible is obtained, hierarchical porous structure C film -4 is denoted as to neutrality with deionized water washing afterwards.
Fig. 2 is the surface SEM photograph of hierarchical porous structure C film -4, and Fig. 3 is the section SEM of hierarchical porous structure C film -4
Photo, Fig. 4 are the partial enlargement SEM photograph of hierarchical porous structure C film -4.From the figure 3, it may be seen that hierarchical porous structure C film -4 is thin
Film with a thickness of 38 microns, which has apparent layered structure, and loosely accumulates between layers
Together, this will significantly reduce film in the thermal conductivity of vertical direction；However as shown in Figure 4, in each layer, single
Pipe runs through, winds porous carbon polyhedron, so that film shows higher thermal conductivity in the horizontal direction.
Application examples 1
30 grams of tap water are housed in the glass beaker that bore is 3.2 centimetres, first by the polyethylene with water supply hole
It is placed on the water surface, then the single-walled carbon nanotube/HKUST-1 for the kayexalate modification that embodiment 1 is prepared thin
The hierarchical porous structure C film -1 that film and embodiment 4 are prepared successively is transferred on polyethylene respectively, structure such as Fig. 5 institute
Show.
Beaker is placed on an electronic balance, under the irradiation of solar simulator (xenon source), carries out water evaporation survey
Examination, wherein the optical power density of sample surfaces is 1kw/m2, while the computer connecting with electronic balance can record water in real time
The variation of quality.By calculating the variation of the water quality of unit area in certain time it can be concluded that the evaporation rate of water is asked
Obtain the vapor reforming efficiency of solar energy.
As shown in Figure 6,7, the evaporation rate of prepared interface sea water desalination thin-film material is 1.33kg/ (m2H), too
The positive vapor reforming efficiency of energy is 87.2%.
Application examples 2
30 grams of tap water are housed in the glass beaker that bore is 3.2 centimetres, first by the polyethylene with water supply hole
It is placed on the water surface, then the single-walled carbon nanotube/HKUST-1 for the kayexalate modification that embodiment 1 is prepared thin
The hierarchical porous structure C film -2 that film and embodiment 5 are prepared successively is transferred to respectively in the beaker for filling tap water, structure
As shown in Figure 5.
Beaker is placed on an electronic balance, under the irradiation of solar simulator (xenon source), carries out water evaporation survey
Examination, wherein the optical power density of sample surfaces is 1kw/m2, while the computer connecting with electronic balance can record water in real time
The variation of quality.By calculating the variation of the water quality of unit area in certain time it can be concluded that the evaporation rate of water is asked
Obtain the vapor reforming efficiency of solar energy.
As shown in Figure 6,7, the evaporation rate of prepared interface sea water desalination thin-film material is 1.08kg/ (m2H), too
The positive vapor reforming efficiency of energy is 69.8%.
Application examples 3
30 grams of tap water are housed in the glass beaker that bore is 3.2 centimetres, first by the polyethylene with water supply hole
It is placed on the water surface, then the single-walled carbon nanotube/HKUST-1 for the kayexalate modification that embodiment 1 is prepared thin
The hierarchical porous structure C film -3 that film and embodiment 6 are prepared successively is transferred to respectively in the beaker for filling tap water, structure
As shown in Figure 5.
Beaker is placed on an electronic balance, under the irradiation of solar simulator (xenon source), carries out water evaporation survey
Examination, wherein the optical power density of sample surfaces is 1kw/m2, while the computer connecting with electronic balance can record water in real time
The variation of quality.By calculating the variation of the water quality of unit area in certain time it can be concluded that the evaporation rate of water is asked
Obtain the vapor reforming efficiency of solar energy.
As shown in Figure 6,7, the evaporation rate of prepared interface sea water desalination thin-film material is 1.04kg/ (m2H), too
The positive vapor reforming efficiency of energy is 67.6%.
Application examples 4
30 grams of tap water are housed in the glass beaker that bore is 3.2 centimetres, first by the polyethylene with water supply hole
It is placed on the water surface, then the single-walled carbon nanotube/HKUST-1 for the kayexalate modification that embodiment 1 is prepared thin
The hierarchical porous structure C film -4 that film and embodiment 7 are prepared is transferred to respectively in the beaker for filling tap water, structure such as Fig. 5
It is shown.
Beaker is placed on an electronic balance, under the irradiation of solar simulator (xenon source), carries out water evaporation survey
Examination, wherein the optical power density of sample surfaces is 1kw/m2, while the computer connecting with electronic balance can record water in real time
The variation of quality.By calculating the variation of the water quality of unit area in certain time it can be concluded that the evaporation rate of water is asked
Obtain the vapor reforming efficiency of solar energy.
As shown in Figure 6,7, the evaporation rate of prepared interface sea water desalination thin-film material is 1.38kg/ (m2H), too
The positive vapor reforming efficiency of energy is 90.8%.
Application examples 5
30 grams of simulated seawaters (3.5wt% (0.6mol) NaCl) are housed in the glass beaker that bore is 3.2 centimetres, first will
Polyethylene with water supply hole is placed on the water surface, then the kayexalate modification that embodiment 1 is prepared
The hierarchical porous structure C film -4 that single-walled carbon nanotube/HKUST-1 film and embodiment 7 are prepared is transferred to respectively fills mould
In the beaker of quasi- seawater, structure is as shown in Figure 5.
Beaker is placed on an electronic balance, under the irradiation of solar simulator (xenon source), carries out water evaporation survey
Examination, wherein the optical power density of sample surfaces is 1kw/m2, while the computer connecting with electronic balance can record water in real time
The variation of quality.By calculating the variation of the water quality of unit area in certain time it can be concluded that the evaporation rate of water is asked
Obtain the vapor reforming efficiency of solar energy.
The stability and reusability of solar steam generating device are particularly important in practical applications, therefore we
Long circulating test has been carried out to film.Each loop test time is 120 minutes, and the buoyancy layer of hygrometric state is then hindered salt deposit and light
Hot material layer is transferred directly on filter paper, after dry in 60 DEG C of baking ovens, carries out the test of next circulation.
Fig. 8 shows that sea water desalination thin-film material long circulating in simulated seawater shows, and as seen from the figure, film has outstanding
Cyclical stability.
Technical solution of the present invention and beneficial effect is described in detail in embodiment described above, it should be understood that
Above is only a specific embodiment of the present invention, it is not intended to restrict the invention, it is all to be done in spirit of the invention
Any modification, supplementary, and equivalent replacement etc., should all be included in the protection scope of the present invention.
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